摘要
实验构建了处理低碳氮比废水的双室生物阴极微生物燃料电池,研究了微氧条件下,实现短程硝化反硝化以及曝气量对脱氮性能和微生物群落的影响。曝气量为2.31 mL·min^(-1)时,总氮去除率达到74.71%,NO_(2)^(-)-N积累率也可达到90.33%,C/N为1.09,在MFCs阴极微氧条件下实现短程硝化反硝化且脱氮效果最好。微生物群落分析表明,生物阴极微生物燃料电池短程硝化反硝化脱氮是由于Thauera与Nitrosomonas菌属占优势。
A two-chamber bio-cathode microbial fuel cell fed with low chemical oxygen demand/total nitrogen(C/N)wastewater was built to achieve short-cut nitrif ication and denitrif ication under microaerobic conditions and study the effect of aeration on nitrogen removal performance and the microbial community.When the aeration rate was 2.31 mL·min^(-1),the best total nitrogen removal eff iciency of 74.71%was achieved and the nitrite accumulation rate was 90.33%.Besides,C/N was 1.09,the bio-cathode short-cut nitrif ication and denitrif ication could be established under microaerobic conditions in the cathode of MFCs.Microbial community analysis revealed that in the bio-cathode microbial fuel cell could be explained by a high predominance of Thauera and Nitrosomonas.
作者
刘若男
LIU Ruo-nan(Department of Architectural and Environmental Engineering,Taiyuan University,Taiyuan 030000,China)
出处
《化工管理》
2022年第10期55-57,61,共4页
Chemical Engineering Management
关键词
微生物燃料电池
低C/N比
短程硝化反硝化
曝气量
微生物群落
microbial fuel cells
low C/N
short-cut nitrif ication and denitrif ication
aeration rate
microbial community
